If x is the probability of an event happening, then which of the following represents x?
1 answer:
Answer: The correct option is (C)
Step-by-step explanation: Given that 'x' is the probability of an event happening.
We are to select the correct statement that represents 'x'.
We know that the probability of the happening of an event is always lie between 0 and 1.
If the probability of an event is 0, then it is a null event.
If the probability of an event is 1, then it is a sure event.
The probability of all other events lie between 0 and 1.
Therefore, the statement that represents 'x' is
Thus, (C) is the correct option.
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Answer:
The required specific heat is 196.94 joule per kg per °C
Step-by-step explanation:
Given as :
The heat generated = Q = 85.87 J
Mass of substance (m)= 34.8 gram = 0.0348 kg
Change in temperature = T2 - T1 = 34.29°C - 21.76°C = 12.53°C
Let the specific heat = S
Now we know that
Heat = Mass × specific heat × change in temperature
Or, Q = msΔt
Or, 85.87 = (0.0348 kg ) × S × 12.53°C
Or , 85.87 = 0.4360 × S
Or, S =
∴ S = 196.94 joule per kg per °C
Hence the required specific heat is 196.94 joule per kg per °C Answer